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From: Alain Volmat <alain.volmat@foss.st.com>
To: <wsa@kernel.org>, <robh+dt@kernel.org>
Cc: <mark.rutland@arm.com>, <pierre-yves.mordret@foss.st.com>,
	<mcoquelin.stm32@gmail.com>, <alexandre.torgue@foss.st.com>,
	<linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <fabrice.gasnier@foss.st.com>,
	<alain.volmat@foss.st.com>
Subject: [PATCH v4 1/2] i2c: add binding to mark a bus as supporting SMBus-Alert
Date: Wed, 5 May 2021 15:14:38 +0200	[thread overview]
Message-ID: <1620220479-2647-2-git-send-email-alain.volmat@foss.st.com> (raw)
In-Reply-To: <1620220479-2647-1-git-send-email-alain.volmat@foss.st.com>

Since SMBus-Alert is an optional feature of SMBUS which
requires an additional pin, the smbus binding cannot be
used to indicate its support.

Add an additional smbus-alert binding specific for it and
update the description text of smbus to avoid mentioning
SMBus-Alert

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
---
 Documentation/devicetree/bindings/i2c/i2c.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index df41f72afc87..b864916e087f 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -89,8 +89,11 @@ wants to support one of the below features, it should adapt these bindings.
 
 - smbus
 	states that additional SMBus restrictions and features apply to this bus.
-	Examples of features are SMBusHostNotify and SMBusAlert. Examples of
-	restrictions are more reserved addresses and timeout definitions.
+	An example of feature is SMBusHostNotify. Examples of restrictions are
+	more reserved addresses and timeout definitions.
+
+- smbus-alert
+	states that the optional SMBus-Alert feature apply to this bus.
 
 Required properties (per child device)
 --------------------------------------
-- 
2.7.4


  reply	other threads:[~2021-05-05 13:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-05 13:14 [PATCH v4 0/2] i2c: stm32f7: add SMBus-Alert support Alain Volmat
2021-05-05 13:14 ` Alain Volmat [this message]
2021-05-07  0:55   ` [PATCH v4 1/2] i2c: add binding to mark a bus as supporting SMBus-Alert Rob Herring
2021-05-25 19:47     ` Wolfram Sang
2021-05-25 19:53   ` Wolfram Sang
2021-05-05 13:14 ` [PATCH v4 2/2] i2c: stm32f7: add SMBus-Alert support Alain Volmat
2021-05-10  8:02   ` Pierre Yves MORDRET
2021-05-25 19:53   ` Wolfram Sang

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